. >> we don't succeed here, and the taliban come back into power, and we will be attacked again. >> the senators met with avenue -- met with the afghan president last night. the first troops will be coming home later this month with the president's plan. >>> the portapotties are lined up, and the security check points will soon be manned along the national mall. hundreds of thousands of people are expected to attend the festivities in the nation's capital. surae chinn has advice for you. >> reporter: happy 4th of july for you. it's going to be a big celebration. it's quiet now, but you can imagine the place will be crawling with people. the portapotties as you mentioned are lined up, and we also have first aid tents on the mall in case anyone suffers for heat exhaustion or anything else, or someone needing attention for anything else. folks are putting the finishing touches on the spectacular display, and also rehearsals for the concert went on despite the bad weather on the west lawn of the capital. you can expect singers like matthew morrison and chelsea hightower and mark allen. >> i